Refrigerator car



' April s, l192?. 1,623,305

M.AcARR REFRIGRATOR CAR Patented Apr. 5, 1927.

MATTHEW CARR, ci? BERWYMILLINos, assienoa To Josnrne CARRY; oF smeared: i Y ,.ILL'nvoIs I v entre,research?.V can.

appiieation inea August 19, 1926.V sensing. 130,300. Y

This invention relates to refrigerator railway cars7 and more particularly to the hatchways and plugs therefor.

One of the objects of the; inventionl isnt-he provision of new and improvedfmeans 'for renderin T the joint between the plug and walls of the hatchway airtight.

Another objectVV of the invention isl the provision of new and improved means-at the Vcorners of the hatchway whereby the plug may be easily inserted withl a minimum vamount of friction and an airtight joint be formed.` p' v A still furth-er object-of 'the invention is the provision of new and improved lining for the corners' of a hatchway that is cheap to manufacture, easily applied to the' hatchway, and when applied is efficient in" use and durable and rugged in construction.`

Other and further objects and advantages ofthe invention will ap'p'earfroin the Vfollowing description vtalren in connection with the accompanying drawings,l in which- Fig.' l is a verticaljsection of the upper portion cfa Vrefrigerador car showing the invention in position therein;V f

' Fig. y2 is a cross-section on line 2l2 ofl Fig. l; v v i Y F ig. 3 is a .section on line 3-3 of Fig. l; and y Fig. tY is a perspective view Vof .a corner ofa hatchway. showing the invention in position thereon, with parts broken away. i

In the-construction of hatch-es or. hatchwaysy and plugs ,or closures therefor v'great difculty has .been .experienced in so ,constructing the parts that the joint between the plug .and thewalls ofthe .hatchway will be airtight. It is common practice tol make the hatchways rectangular in cross-section andto pad the plugs or closures therefor on their peripheral or engaging surfaces Y in order to make an airtight joint between the plugs and hatchway walls, but it is extremely difficult if not impossible to so construct the corners ofthe plug that the padding thereon will make a close lit with the walls in the corners of the hatchway. VIn order to overcome this difficulty it has been proposed to employ a special corner attachmentl asby padding the cornersv of the hatchway, but Y this isl impractical because the great amount of friction vbetween thepadding on the plug and the attachment on the corners of the hatchway Ain inserting and .llifiovillgV the hatchway.

plug soon wears and destroys the fat-tach- A nient orthe padding on the plugyo'rrbotli.,` ,V The present invention seeks yto remedy this defect pand" to so construct'ithepartsy that an airtightjoint is formed, and at the same time friction` betweenthe partsis re duced to a minimum.

`A -form of the device illustratingone emi bodiment'of-the inventionv will now be described.V Referring to Vthe drawings,` in

which the same refer-ence characters desi'gnat-e the same parts throughout thedesc'ripy t-iona the numeral l0 designates a refrigerator car having the usual deck lil and ceiling 7.o

l2 beneath and spaced from the same. 'Since the specific features of the carl constitute nov part of the presentinvention,VVV it is notV thought necessary to further illustrate 0r describe thesame. V i rlheV roof or deck of the car is provided with the yusual hatch. or' -hatchway l`13 above the icel bunkers. through which` ice is .delivered to the'same. This passage is rectangu-V lar inv cross-section-'and4 is tapered downwardly in the usual manner. f. y .Y 'A plug 1st is provided for thel hatchway.

This, plug may beef theusual construction 7' and comprises a yhollowfwooden construction filled with suitable heat linsulating material 14.- The plug-is tapered to corr-espond with the tapered yhatchway and'is'provided l, `on itsedges with a padding .offheatinsulating materiall. which is held in position by a suitable Vfabric lisecured to the plugl whereby the latter may be wedgedint'o the The walls of the hatchway arepreferably though. not `necessarily lined with sheet. metal- 17 -to facilitate the insertion and removal t "l, i

In order to form` airtight joints at the corners of the .hatchway, corner pieces V18,

curved in cross-section, are provided. rllhese corner pieces are'forined from any suitable material such as sheet metal and as shown` have top and bottom flanges 19 and 2l extending over and beneath `the walls 22 forming a hatchway for securing said pieces inthe corners thereof.v These corner pieces Y are curved in cross-section as clearly shown. in Fig. 3. I upper portion of each corner piece is short and gradually increases in length toward the lowerV portion thereof, whereby a substantially Square cerner is `termed. at the upperr The radius of the curve at the portiofof the `corner pieee shown in ig.2',"wl`1ioli gradually merges into a broad curve toward the 'intermediate portion of 'said pieee,"a's=olearly shownvin Fig. 3. YThis arrangement results in ajtaperlng orcon A yvergingof the corner pieces downwardly.

The space between the corner pies and the corner of the hatohway is elosedvat each u struction' thelu'pper flange i19'p`may be `disl pensed4 with,V since the v structure is su"flioientend by the flanges 19 and 21, thus forming VKa v poeket [of airrwhioh prevents the transnssien er haar throegh this portion of ai@ I f. hatohwaygf The eornerpi'eoes 18 are shown fs jeitefnding" over the lining 17 .but it lis understood it'inay be'k otherwise.

rIffit fis desired toforin -a-oleaper oon- Iyigid "without it-` when the device is in pols'itinlinfgthe liatohway. `In this event the between the Corner pieces and the Space,

w'a' spofftlie hat'ohwayfnay; be filled with i. ins Arnat'erial,iiffdesired, although this ,.f-isjlar'dly v"netjes'sary `sine thehsp'aofe is so narrow and so Iong'that'there is little or erwiesen of sie therein.'

" f These VCorner piecesk are semiredf Vto the jearners of the hatchway by, any suitable *Y fn'eans as the nails or rivets 23 theh'eads of l which areflush with the surfaoejof said `Wlieii the plug 14 is inserted in the hatoh" V` vifaythe corners thereof .wil'lwniake a; tight fief'with the sides er niehathway and the orner pieces thereof, thus forfning anpar Y tightA iointvr about the entire periphery of said' plug. Owing to-ftheftaperingfof the f .v eiegaaahamhway thesis-,e 'may refereed me ,the passageway; sitiaht'ly as may. be :rd'gsred Due tdthefaet that the plug-en- 4` gagingsnrfaoes of the -liatohwayfareV of lmetal a Y minimum re'slstan'ce is l offeredV to Y 'f'thejintroduotion andlrenioval of the plug. p

M'Apver 24, ofthe iisual or `any well- Vlfno'wnConstruction, is providedfor the liatohway, as shown in Fig. 1

j "It isthough from theforegoing talr'en'in Y that the onstruotion' and operation 'of my device willy .be apparent to those yskilled the yart, and lythatvarious,changes in size,

shap'e,'propoition and details of construction'A niay beinade without departing from the spi-rit andsoope of the appended claims.

I yclaim Vas my invention: 5 Y

"1. In a refrigerator oar having a hatch-Vk way through thev roof thereof7 a lining for said h'atehway, a padded plug for closingV to be engaged by said plug; and a closure for said hatohway adapted-,to protect, said p y plug. l e -l v 3. In a refrigeratorrcar provided with a rectangular hatoliw'ay having walls oonverging downwardly, a Corner shield of sheet nietal secured in each oornerof said hat'ohway, the corner portion of'eaoh shield being curved in cross-section, and a tapered plug adapted to be inserted in said hatehway,

said plug. being rectangular in Cross-section and padded on all four side edges.

"21. Ina refrigerator oarjprovided `with af hatehw'ayphaving a'ta-pe'red upper portion, a nieta-111e strip curved-*1n 'cross-seotion'ex tending along eaeh cornerof said. liatehvlayY and' provided with lja flange `at `each endV thereof for securing said strip'V in position said strip and the corner walls of said hatchway, and a taperedv plug for said hatohway,A

said'plug having Vpadding onits peripheral edge for forming an air-tight joint between said plugand the walls and strips 'of said hatolrwa y hatohway, afnietallio corner piece, Curved in cross-section, secured in each borner, the radins of. said curve increasing downwardly 1 toward the intermediate portion of said oorner pieoeand a plug having padding onv its peripheralvedge, lfor closing said hatchway. Y In testimony whereof I afIiX my signature.

' MATTHEW CARR'.

and for forniinga Closed Vair space between y 9U 5. In a refrigerator oar provided with a 

